<!--  -->
<template>
  <div>
      <div class="todo-header">
        <input v-model.trim="title" type="text" @keyup.enter="addTodo" placeholder="请输入你的任务名称，按回车键确认"/>
      </div>
  </div>
</template>

<script>
import {nanoid} from 'nanoid'
export default {
  name:"MyHeader",
  data () {
    return {
        title:"",
    }
  },
  props:['add'],
  methods:{
      addTodo(){
          if(this.title===""){
              return this.$message('不能为空');
          }
          let obj={
              id:nanoid(),
              name:this.title,
              done:false
          }
          this.add(obj);
          this.title="";

      }
  }

}
</script>

<style  scoped>


/*header*/
.todo-header input {
  width: 560px;
  height: 28px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 7px;
}

.todo-header input:focus {
  outline: none;
  border-color: rgba(82, 168, 236, 0.8);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(82, 168, 236, 0.6);
}
</style>
